mylib=libcal.a
CC=gcc

$(mylib):add.o sub.o
	ar -rc $(mylib) $^
%.o:%.c
	$(CC) -c $<

.PHONY:clean
clean:
	rm -f $(mylib) *.o

.PHONY:output
output:
	mkdir -p mathlib/lib 
	mkdir -p mathlib/include
	cp *.h mathlib/include
	cp *.a mathlib/lib
